Saw-guide.



No. 755,318. PATBNTBD MAR. 22, 1904. H. P. SGHOFIELD.

SAW GUIDE.

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umu 1 PATBNTED MAR.y 22, 1904'.

' VH..P. SGHOPIBLD.

SAW GUIDE. A APPLIOATION FILED my 27. 1903.

no Mount.

UNITED STATES` Patented March 22, 1904-.

PATENT l Orrici.

HENRY P. SCHOFIELD, OF CHICAGO., ILLINOIS, ASSIGNOR TO COVELMANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OFILLINOIS. n

SAW-GUIDE. y

SPECIFICATION forming part of Letters Patent No. 7 55,318, dated March22, 1904.

Application filed May 27, 1903.

To-ctZZ whom, t may concern:

Be it known that I, HENRY P. SCHOFIELD, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Saw-Guides, of which thefollowing is a specification.

My invention relates particularly to sawguides adapted to bearranged'about a savvsharpening machine for the purpose of supporting aband-saw while the sharpeningoperation is being carried on.

My primary object is to provide a device of this character which willpermit ready insertion and removal of the saw, and yet will permit thesaw to move freely in the guide.

The invention is illustrated in the accompanying drawings, in which-Figure l represents an elevational view of my improved saw-guidesupporting a fragment of a saw; Fig. 2, a Vbroken view of the standard,Itaken, as indicated, at line 2 of Fig. l; Fig. 3, a similar view of theopposite side of the standard, taken, as indicated, at line 3 of Fig. l;Fig. 4f, a broken vertical section taken, as indicated, at line 4 ofFig. 2; and Fig. 5 a broken section taken, as indicated, at line 5 ofFig. l.

A description of the preferred construction is as follows: A represents.a ,Suitable base provided with a tubular standard A, having a verticalopening A3; A3, a member having a telescoping connection with thetubular portion A/ and equipped with a rack a, exposed at the openingA3; Ai, a 'shaft journaled in suitable bosses on the tubular portion Aand equipped with a pinion A3, meshing with the rack a, and equippedalso with a handle A3; A7, a set-screw for fixing the member A3 at anydesired height; B, a guide-head provided with a depending stem B',journaled in a socket with which the upper end of the member AS isprovided; B3, a grooved roller having a shaft o supported in the fixedportion of the head B; B3, fixed vertical guide members with which thehead B is provided and which serve.

as guide-walls or bearings for one side of the Saw, and B4 a pair ofpivoted members coact- Serial No. 158,946. (No model.)

on a pivot f, extending parallel with the saw, Y

and is provided at its base, adjacent to the pivot, with a cam orextension f', which extends through a slot f2 at the base of thecorresponding member B3. The head B is equipped adjacent to the baseportions of the members B3 and between the slots f3 with levers f3,supported on pivots f4 and having short camarms f3, which serve to.engage the short arms o-r cams f' of the members B4L in the verticalposition. This is clearly illustrated in Fig. 5. The channel C has atits bottom shoulders g, which are formed at Vther inner sides of thestationary members B3. The grooved roller B2 projects above theseshoulders and supports the saw.

From the foregoing description it Will be understood that the saw may beentered in the channel and supported on the roller B3, While the membersB4L are in the vdropped position,A after which themembers may be vraisedto the vertical standing position and locked by the levers f3. Theimportance of this construction will be understood when it is explainedthat saws of, this character are usually very heavy, making it adifficult operation to enter them into narrow guides.

It Will be understood that changes in details of construction within thespirit of my invention may be made. Hence no undue limidetaileddescription.

What I regard as new, and desire to secure by Letters Patent, is

l. A saw-guide, comprising a standard provided with a stationary guidemember having perforations, pivoted guide members having short arms attheir lower ends entering said tation is to be understood by theforegoing Y perforations and capable of being dropped from theirvertical position, and locking devices for engaging said arms supportedon pivots adjacent to said perforations, for the purpose set forth.

2. A saw guide, comprising a standard equipped with a guide-head havingtwo vertical stationary guide members, a roller journaled in said headbetween said guide members, pivoted guide members opposed to saidfirstnamed guide members and having short camarms at their lower ends,and a pair of camlevers supported on pivots perpendicular to said guidelmembers, for the purpose set forth.

3. A saw-guide, comprising a base portion having a tubular standardprovided at one side of its upper portion with a slot and flanking lugs,a shaft journaled in said lugs, and equipped with a handle and pinion, aguidehead for a saw having a vertical guide-channel, and a stem swivellysupporting said guidehead and telescoping with said tubular standard andprovided with a rack engaged by said pinion, for the-purpose set forth.

HENRY P. SCHOFIELD.

In presence of# W. B. DAvIns, WALTER N. VVINBERG.

